INCIDENCE OF POST OPERATIVE PULMONARY COMPLICATIONS IN PATIENTS WITH CHRONIC OBSTRUCTIVE PULMONARY DISEASE UNDERGOING SPINE SURGERY UNDER GENERAL ANAESTHESIA: LUNG PROTECTIVE VENTILATION VS STANDARD MECHANICAL VENTILATION. FMHR. 2025;3(4):1035-1045. Accessed May 26, 2026. https://fmhr.net/index.php/fmhr/article/view/1515